Answer:
The important point is that the surface area to the volume ratio gets smaller as the cell gets larger. Thus, if the cell grows beyond a certain limit, not enough material will be able to cross the membrane fast enough to accommodate the increased cellular volume.
#19
Polar nuclei fuse to produce Diploid secondary nucleus.
#20
After fertilisation the antipodal cells undergo meosis
#21
In which of the following double fertilisation occurs.
Ans:- Angiosperm s
#22..
In angiosperms pollen grains germinate on the Anther.
Answer:
Should be to store the genetic information ans control center of the cell
Answer:
Black Angus, Red Angus, Holstein, Gelbvieh
Hope this helps!
Answer:
b)Only certain genes are expressed in each of the cell types.
e)Specific functions of each cell type are dictated by the proteins that are produced.
